lewistk

yep..same topic again guys.

Im still having the hesitation during acceleration and big loss of power etc. have checked or changed practically anything i can think of fuel wise or ignition related.

you dont think a bad tranny or clutch would make this stumbling do you??

possibly its slipping or something?

Thanks guys. Help me out! me car is running like crap!

timeformiller44

is it a huge lack or power like holy **** car doesnt want to do anything...if so...

maybe get your cats check...if they plugged...ull have no power...hesitations and all the crap...

lewistk

ok, but my exhaust system is new. prob 3 months old.
u think i should check that anyway?

99BlackPonyGT

if you are running rich at all, it will mess up the cats...its worth looking into....have you had a diagnostic test done on it?i hate to say it but take it to the dealer for a diagnostic...they charged me 117 dollars and they told me which cylinders were missing on my car and told me why they were missing and how to fix it...then i went and got parts from napa and did it myself...you probably have a misfire...

lewistk

yeah i have a misfire in cylinder 6. ive checked my entire ignition system, compression test, fuel system, everything. i guess its a blown head gasket, im getting a little white smoke coming out and some funny smells too.

ottos

Check it out... from yours truly: https://mustangforums.com/m_4511996/tm.htm

ottos

i would not say blown gasket yet. check your MAF too, though its probably fine. if you've already driven it around enuf for the PCM to adjust (to whatever is different from the time it was running right), you might need the latest PCM calibration from the dealer... $80.

hate it when my dealer tells me i need a new COP...fool haha